Added source for ByteEdit

src/org/fife/ui/rsyntaxtextarea/RtfTransferable.java

@@ -0,0 +1,96 @@
+/*
+ * 07/28/2008
+ *
+ * RtfTransferable.java - Used during drag-and-drop to represent RTF text.
+ *
+ * This library is distributed under a modified BSD license.  See the included
+ * RSyntaxTextArea.License.txt file for details.
+ */
+package org.fife.ui.rsyntaxtextarea;
+
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.Transferable;
+import java.awt.datatransfer.UnsupportedFlavorException;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.StringReader;
+
+
+/**
+ * Object used during copy/paste and DnD operations to represent RTF text.
+ * It can return the text being moved as either RTF or plain text.  This
+ * class is basically the same as
+ * <code>java.awt.datatransfer.StringSelection</code>, except that it can also
+ * return the text as RTF.
+ *
+ * @author Robert Futrell
+ * @version 1.0
+ */
+class RtfTransferable implements Transferable {
+
+	/**
+	 * The RTF data, in bytes (the RTF is 7-bit ascii).
+	 */
+	private byte[] data;
+
+
+	/**
+	 * The "flavors" the text can be returned as.
+	 */
+	private static final DataFlavor[] FLAVORS = {
+		new DataFlavor("text/rtf", "RTF"),
+		DataFlavor.stringFlavor,
+		DataFlavor.plainTextFlavor // deprecated
+	};
+
+
+	/**
+	 * Constructor.
+	 *
+	 * @param data The RTF data.
+	 */
+	RtfTransferable(byte[] data) {
+		this.data = data;
+	}
+
+
+	@Override
+	public Object getTransferData(DataFlavor flavor)
+					throws UnsupportedFlavorException, IOException {
+		if (flavor.equals(FLAVORS[0])) { // RTF
+			return new ByteArrayInputStream(data==null ? new byte[0] : data);
+		}
+		else if (flavor.equals(FLAVORS[1])) { // stringFlavor
+			return data==null ? "" : RtfToText.getPlainText(data);
+		}
+		else if (flavor.equals(FLAVORS[2])) { // plainTextFlavor (deprecated)
+			String text = ""; // Valid if data==null
+			if (data!=null) {
+				text = RtfToText.getPlainText(data);
+			}
+			return new StringReader(text);
+		}
+		else {
+			throw new UnsupportedFlavorException(flavor);
+		}
+	}
+
+
+	@Override
+	public DataFlavor[] getTransferDataFlavors() {
+		return FLAVORS.clone();
+	}
+
+
+	@Override
+	public boolean isDataFlavorSupported(DataFlavor flavor) {
+		for (int i=0; i<FLAVORS.length; i++) {
+			if (flavor.equals(FLAVORS[i])) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+
+}